Ditching-machine.



G. KOSMIN.

DITGHING MACHINE.

APPLICATION FILED we. 10, 1910.

Patented Apr. 16, 1912.

5 8HEETB-81IEET 1.

0'. KOSMIN.,

DITGHING MACHINE. APPLICATION FILED AUG. 10, 1910. 1,023, 1 56. Patented Apr. 16, 1912.

5 SHEETS-SHEET 2.

0. KOSMIN. DITGHING MACHINE.

APPLICATION FILED AUG. 10, 1910.

1,023, 1 56. Patented Apr. 1 6, 1912.

5 SHEETSBEEET 3.

c. K OSMIN.

DITGHING MACHINE.

APPLICATION FILED AUG. 10, 1910.

1,023,156, Patented Apr. 16, 1912.

5 SHEETSSHEET 4.

4'01 lym 6.1 176 I g I 165 A 1 62 i I /04 G. KOSMIN.

DITGHING MAOHINE.

APPLICATION FILED AUG. 10, 1910.

1,023,1 56, Q Patentd Apr. 16, 1912.

6 SHEETS-SHEET 5.

CHARLES KOSMIN, OF ARLINGTON'HEIGHTS, ILLINOIS.

DITGHING-MACHINE.

Specification of Letters Patent. Patented Apr. 16, 1912- Application filed August 10, 1910., Serial 1N0. 576,506.

To all whom it my concern:

Be it known that I, CHARLES KOSMIN, citizen of the United States, residing at Arlington Heights, in the county of Cook and 'State of Illinois, have invented certain new and useful Improvements in Ditching- Machines, of which the following is a specification.

My invention relates to a ditching or ex-' cavating machine, and the invention has forits object to provide the several new and improved constructions, arrangements and apparatuses in ditching or excavating machines which will be hereafter described and claimed.

One of the objects of the invention is to so arrange the instrumentalities used in making the excavation that, when desired, the trench may be wider at the top than the of the arrows; Fig. 3, a, sectional plan taken on line 33 of Fig.1, showing certain part-s broken away; Fig. 4, a detail section on line 4-4 of Fig. 3; Fig. 5, a vertical cross sectional view taken on line 55 of Flg. 3,

- looking in the direction of the arrows; Fig.

6, a fragmentary-elevation, on an enlarged scale, of the upper end of the boom and digging chains, and Figs. 7 and '8, views in perspective of devices employed for cutting into the bottom and sides, respectively, of the ditch. Fig. 9 is a detail View.

Like characters of reference indicate like parts in the several figures of the drawings.

other mechanisms which make up the complete machine but which as they are not directly here concerned need not be described in detail.

The boom or pivoted frame which carriesthe digging chains preferably is made up of the two side plates ,68, formed with the upper and lower flanges 69 between which,

side plates are mounted the main upper sprocket wheel and the lower main sprocket 71. Over these sprockets runs the main digging chain 72 towhich are secured in alternate arrangement the cutting devices or diggers 73 and the scoops or buckets 74. The .boom is pivotally supported at its upper end on a shaft 7 5 carried in bearings 76 on the frame members 77 shaft carrying the upper main sprocket 7O andalso, at each side of the boom an upper sprocket 78 over which runs an auxiliary chain 79 which atits lower ends runs over a sprocket 80 mounted on the boom.

81 which make the cuts along the sides of the trench. The three digging chains are driven by a chain 82 which runs over a sprocket 83 on shaft 75. The chain 82 is driven by any suitable driving'mechanism.

The outer end of the boom may be raised and lowered and the boom held in the desiredangular position by any suitable means.

Preferably, as stated, a main digging chain 72 is employed to which is attached a series of digging tools 73, one of which is shown in detail in Fig. 7. Thisdevice consists of a blade 135, which is secured to the link pivots of the chain by means of the preferably integral forked members 136. The blade 135 is preferably toothed and its function is to cut into the earth transversely of the trench. I On the auxiliary, or side chains 7 9, are cutting devices for cutting the earth at the sides of the proposed trench, one of these devices being shown in Fig. 8. and consisting of a member 81, provided with lugs 138, by means of which it may be secured to a link pivot of the chain; a blade 139, and, preferably, a bracing istrap 140 Theauxiliary chains 79 carry cutting devices 1 adapted to be secured to the next adjacent The shaft 75 has a feather 141 and'the sprockets 78 are provided with\ set-screws 142. The purpose of this arrangement is to' permit chains 79 to be spread at the upper end of the boom'bywhich blades 139 are given an inclination which will cause them,

when desired, -to cut a trench which will be wider at'the top than the bottom. 7

The buckets or scoops 74, with which the main digging chain is provided, dig up the earth cut and loosened by the devices 73, 81,.

and deliver it on the transverse conveyer.

I The conveyer, designed to deliver the spoils from the buckets to one side or other of the trench, as may be desired, is preferably constructed as follows: A frame work,

1 The frames 155, 156 carry sprocket wheels 'ing the frame work in .two parts is to en- 162 over which run the chains 163 carrying the endless apron 164:. The purpose of makable the effective length of the conveyer to be varied, the chains 163 at the shorter adjustments of frames 155', 156 running slack,

as shown in F ig; 2. The purpose of making the frame work movable on rods 160 is to allow the same' tobe moved from one side I to the'ot'her of the machine, according to Whether the spoils are to'be deliveredto one side or the other of the ditch.

ed two bevel gears 165, 166 which are adapted to be brought into mesh with a bevel gear 167 on a short shaft 168 arranged under the frame'of the carriage. Shaft 168 has rigid therewith the sprocket 170 over which runs a chain 171, driving a sprocket 172 on a shaft 173, which shaft carries the' pair of sprockets 175 meshing with and driving the chains 163 of the endless conveyer. The bevel gears 165', 166 are engaged by the forked ends of a lever 176 which may be set at three different positions 011 the segment 177. This arrangement enables the endless conveyer to be driven in either direction. or to stand idle, as may be desired.

" Itwill be observed that the conveyer as a whole is movable bodily from side to side and that in, order to make this shift it is only necessary to drive the chains in the direction desired. The conveyer is in effect a floating conveyer which takes its position at one side or the other of the machine, accordiiig to-which direction the chains are driven. Preferably a' board 17 6 is provided at the side of the conveyer opposite to the buckets to prevent the dirt from spilling off the conf sides of said main chain, provided'with-cutting blades w'hich'bear against and cut the sides of the ditch and means for spreading the auxiliary chains at their upper ends so as to cause the cutters thereof to make oblique cuts.

2. In apparatus of the characterde-' scribed, the combination with supporting means of a boom, a main-chain on said boom, provided with vtransverse cutting blades adapted to cut transversely of the ditch, and

with scoops to remove the spoils, auxiliary chains, provided with cutting blades .ar-

ranged so. as to bear againstand .cut the sides of the ditch, sprockets over which said several chains run, andmeans for shifting the relative positions of the auxiliary chain sprockets. at one end of the boom, substan tially as and for the purpose'described. On shaft 104 (Fig. 5) are loosely mount- 3. In apparatus of the character deguide rods arranged longitudinally of said carriage, a conveyer upon which the excavatlng apparatus delivers comprising a frame consisting. of two overlapping frame members and means for securing the same together, said frame members being slotted so that said frame is slidable transversely of the carriage upon said guide rods,-

sprockets carried on the ends of said frame, endless chains on said sprockets, an'endless apron on said chains, anda shaft extending longitudinally of said carriage and provided with sprockets engaging with said chains; and means forcdriving said shaft.

CHARLES KO SMIN. Witnesses:

A. F. VoLz, P. H. TRUMAN. 

